LONGi signs US$1.88 billion wafer supply contract with Tongwei Solar

January 22, 2020
Facebook
Twitter
LinkedIn
Reddit
Email
LONGi’s new wafer supply deal was signed with Tongwei Solar (Chengdu) Co but includes its other solar cell subsidiaries, Tongwei Solar (Anhui) Co., Tongwei Solar (Hefei) Co., Ltd., Tongwei Solar (Meishan) Co and totals supplying 480 million ‘pieces’ (wafer units) during the contracted period. Image: LONGi

Updated: Leading monocrystalline wafer producer, LONGi Green Energy has signed a new wafer supply agreement with major merchant solar cell producer, Tongwei Solar valued at approximately US$1.88 million, over a three-year period.

LONGi’s new wafer supply deal was signed with Tongwei Solar (Chengdu) Co but includes its other solar cell subsidiaries, Tongwei Solar (Anhui) Co., Tongwei Solar (Hefei) Co., Ltd., Tongwei Solar (Meishan) Co and totals supplying 480 billion ‘pieces’ (wafer units) during the contracted period. The deal price starts at RMB 3.06/unit for 180um thickness wafers. As is the current norm, pricing would be determined on a monthly basis. 
 
LONGi Group and Tongwei group have a close business relationship that starts with Tongwei supplying high-purity polysilicon to LONGi Green Energy to produce P-type mono wafers. In return, LONGi sells mono wafers to Tongwei Solar for the production of high-efficiency solar cells. Tongwei Solar also supplies finished solar cells to LONGi Green Energy’s PV manufacturing subsidiary, LONGi Solar. 

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

PV Tech recently reported that LONGi had signed a three-year wafer supply deal with another emerging merchant solar cell producer, Jiangsu Runyang Yueda Photovoltaic Technology Co (Runergy) worth approximately US$1.5 billion (RMB 10.34 billion) for a total of 3.82 billion units, also at a starting price of RMB RMB 3.06/unit.

Note: Wafer unit numbers were changed to billions not millions and pricing per wafer unit were added.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023, 2024 and 2025 were a sell out success and 2026 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

Read Next

March 13, 2026
Current solar PV module price increases are largely dictated by five major components, according to data from Intertek CEA
March 13, 2026
Impacted by the "One Big Beautiful Bill Act", a Chinese PV company with a US factory has opted to exit the local market by selling its US subsidiary.
March 12, 2026
PV Tech Research’s annual ranking of the top ten PV module manufacturers reveals some signs of recovery after a turbulent 2025, writes Moustafa Ramadan.
March 11, 2026
As TOPCon manufacturing expands globally, producers are facing different cost, safety and supply-chain realities – creating an opportunity to rethink technology platforms and prepare for next-generation tandem architectures.
March 9, 2026
The latest domestic solar-grade polysilicon transaction prices from the Silicon Industry Branch of the China Nonferrous Metals Industry Association show that all domestic n-type solar-grade polysilicon products have plunged, with steep declines across the board.
March 6, 2026
US solar manufacturer Silfab Solar has disputed some reports of chemical spillages at its manufacturing facility in Fort Mill, South Carolina.

Upcoming Events

Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain